CN106026591B - Hybrid excitation permanent magnet motor with double Exciting Windings for Transverse Differential Protection - Google Patents
Hybrid excitation permanent magnet motor with double Exciting Windings for Transverse Differential Protection Download PDFInfo
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- CN106026591B CN106026591B CN201610316335.3A CN201610316335A CN106026591B CN 106026591 B CN106026591 B CN 106026591B CN 201610316335 A CN201610316335 A CN 201610316335A CN 106026591 B CN106026591 B CN 106026591B
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- Prior art keywords
- differential protection
- transverse differential
- rotor
- magnetic pole
- exciting windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
- H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
- H02K21/042—Windings on magnets for additional excitation ; Windings and magnets for additional excitation with permanent magnets and field winding both rotating
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
A kind of hybrid excitation permanent magnet motor with double Exciting Windings for Transverse Differential Protection, including casing, stator core, stator armature winding, permanent magnet, shaft, rotor core, rotor windings.Stator armature winding is distributed in stator slot, rotor core is disposed with permanent magnetism magnetic pole and ferromagnetic magnetic pole, rotor windings are made of demagnetization Exciting Windings for Transverse Differential Protection and operation Exciting Windings for Transverse Differential Protection, demagnetization Exciting Windings for Transverse Differential Protection is sleeved on permanent magnetism magnetic pole pole body, operation Exciting Windings for Transverse Differential Protection is sleeved on ferromagnetic magnetic pole pole body, and demagnetization Exciting Windings for Transverse Differential Protection and operation Exciting Windings for Transverse Differential Protection are connected with two exciter control systems respectively.Compared with prior art, there are two sets of Exciting Windings for Transverse Differential Protection in the hybrid excitation permanent magnet motor of the present invention, air-gap field regulating power with wide scope, and normal excitation, Qiang Li, subtracts and encourage and the excitation functions such as demagnetization, and its structure is similar to common permanent magnet synchronous motor, there is no axial magnetic circuits and additional air gap, have higher power density and operational efficiency.
Description
Technical field
The invention belongs to technical field of motors, are related to a kind of magneto.
Background technology
Permanent magnetism magnetomotive force and electrical excitation magnetomotive force are existed simultaneously in hybrid excitation permanent magnet motor, usual permanent magnetism magnetomotive force accounts for master
Effect is led, electrical excitation magnetomotive force helps out, and while fully ensuring that magneto high efficiency advantage, solves magneto
The adjusting problem of air-gap field.Currently, the hybrid excitation permanent magnet motor scheme that expert and scholar propose both at home and abroad has nearly 30 kinds,
In these hybrid excitation permanent magnet motor schemes, electrical excitation winding can all realize normal excitation, it is strong encourage and subtract the functions such as encourage.So
And when breaking down inside hybrid excitation permanent magnet motor, due to the presence of permanent magnet, how to realize its demagnetization function, it is existing
Most of hybrid excitation permanent magnet motor scheme do not accounted for from design.
Invention content
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of composite excitation with double Exciting Windings for Transverse Differential Protection forever
Magneto.Here double Exciting Windings for Transverse Differential Protection refer to two sets of Exciting Windings for Transverse Differential Protection for having different exciting function, and the realization of set of excitation winding is encouraged
The normal excitation of magnetic system, it is strong encourage and subtract functions, the another set of winding such as encourage and realize the demagnetization function of excitation system.
The technical proposal of the invention is realized in this way.
The present invention includes a casing（1）, casing（1）It is interior to be equipped with by stator core（2）, stator armature winding（3）Composition
Stator and by permanent magnetism magnetic pole（4）, permanent magnet（5）, ferromagnetic magnetic pole（6）, shaft（7）, rotor core（8）, rotor windings（9）Composition
Rotor；Stator armature winding（3）It is distributed in stator core（2）On the slot that along the circumferential direction opens up（10）In, rotor core（8）
On be disposed with permanent magnetism magnetic pole（4）With ferromagnetic magnetic pole（6）, each permanent magnetism magnetic pole（4）Arrange permanent magnet（5）, permanent magnet（5）About forever
Magnetic magnetic pole（4）Center line is symmetrical, rotor windings（9）By rotor demagnetization Exciting Windings for Transverse Differential Protection（11）With rotor operation Exciting Windings for Transverse Differential Protection
（12）Composition, rotor demagnetization Exciting Windings for Transverse Differential Protection（11）It is sleeved on permanent magnetism magnetic pole（4）Pole body, rotor operation Exciting Windings for Transverse Differential Protection（12）It is sleeved on ferromagnetic
Magnetic pole（6）Pole body, rotor demagnetization Exciting Windings for Transverse Differential Protection（11）With rotor operation Exciting Windings for Transverse Differential Protection（12）Respectively with two exciter control systems
It is connected.
Stator armature winding of the present invention（3）It can be multiphase symmetric winding；It may be single-phase winding.
Permanent magnetism magnetic pole of the present invention（4）With ferromagnetic magnetic pole（6）Quantity can be determined according to voltage regulation limits.
Permanent magnet of the present invention（5）Built-in arrangement may be used；Surface-mount type can also be used to arrange.
Motor of the present invention can be inner rotor motor or external rotor electric machine；It may be rotary magnetic pole type motor
Or revolving-armature type machine.
The hybrid excitation permanent magnet motor stator core with double Exciting Windings for Transverse Differential Protection of the present invention（2）The upper a set of stator armature of arrangement
Winding（3）, it is used for energy converting between mechanical.Rotor core（8）On be disposed with permanent magnetism magnetic pole（4）With ferromagnetic magnetic pole（6）, permanent magnet
（5）, rotor demagnetization Exciting Windings for Transverse Differential Protection（11）It is arranged in permanent magnetism magnetic pole（4）, rotor operation Exciting Windings for Transverse Differential Protection（12）It is arranged in ferromagnetic magnetic pole
（6）.Permanent magnetism magnetic pole（4）With ferromagnetic magnetic pole（6）The sum of number of poles and stator armature winding（3）Number of poles it is identical, stator armature around
Group（3）With permanent magnet（5）With rotor operation Exciting Windings for Transverse Differential Protection（12）It is corresponding, electromagnetic induction effect is generated, a rotation is equivalent to
The synchronous generator of magnetic pole.When generator normal operation, permanent magnetism magnetic pole（4）Rotor demagnetization Exciting Windings for Transverse Differential Protection（11）It does not input and encourages
Magnetoelectricity stream, excitation magnetomotive force is by permanent magnet（5）The permanent magnetism magnetomotive force of generation and ferromagnetic magnetic pole（6）Rotor operation Exciting Windings for Transverse Differential Protection
（12）The electrical excitation magnetomotive force of generation is established jointly, by adjusting ferromagnetic magnetic pole（6）Rotor operation Exciting Windings for Transverse Differential Protection（12）Encourage
Magnetoelectricity stream realizes the normal excitation of excitation system, automatic field forcing, and subtracts the functions such as encourage by force；When internal fault of electric generator, make
Ferromagnetic magnetic pole（6）Rotor operation Exciting Windings for Transverse Differential Protection（12）Exciting current be 0, permanent magnetism magnetic pole（4）Rotor demagnetization Exciting Windings for Transverse Differential Protection
（11）Exciting current is inputted, the air-gap magnetic field direction and permanent magnet for so that it is generated（5）The air-gap magnetic field direction of generation on the contrary, to
Realize the demagnetization function of excitation system.
Compared with prior art, hybrid excitation permanent magnet motor of the invention has following features.
1, there are two sets of Exciting Windings for Transverse Differential Protection in the hybrid excitation permanent magnet motor, there is normal excitation, Qiang Li, subtract and encourage and the work(such as demagnetization
Can, solve the deexcitation Problems of hybrid excitation permanent magnet motor.
2, the hybrid excitation permanent magnet motor structure is similar to common permanent magnet synchronous motor, and axial magnetic circuit and additional gas is not present
Gap has higher power density and operational efficiency.
Description of the drawings
Fig. 1 is the present invention, and there is the hybrid excitation permanent magnet motor structural schematic diagram of double Exciting Windings for Transverse Differential Protection and the A-A of Fig. 2 to cut
Face figure.Wherein 1 is casing, and 2 be stator core, and 3 be stator armature winding, and 4 be permanent magnetism magnetic pole, and 5 be permanent magnet, and 6 be ferromagnetic magnetic
Pole, 7 be shaft, and 8 be rotor core, and 9 be rotor windings, and 13 be bearing.
Fig. 2 is the sectional view of motor shown in Fig. 1 of the present invention, with 8 extremely examples.Wherein 2 be stator core, and 3 be stator armature
Winding, 4 be permanent magnetism magnetic pole, and 5 be permanent magnet, and 6 be ferromagnetic magnetic pole, and 7 be shaft, and 8 be rotor core, and 10 be to be arranged on stator core
The slot of winding, the 11 rotor demagnetization Exciting Windings for Transverse Differential Protection to be arranged on permanent magnetism magnetic pole 4,12 rotor operation to be arranged on ferromagnetic magnetic pole 6
Exciting Windings for Transverse Differential Protection.
Fig. 3 is the circuit diagram of the present invention.
Fig. 4 is the air gap magnetic density waveform that permanent magnet of the present invention generates.
Fig. 5 is permanent magnet of the present invention and the air gap magnetic density waveform that operation Exciting Windings for Transverse Differential Protection generates jointly.
Fig. 6 is the air gap magnetic density waveform that permanent magnet and demagnetization Exciting Windings for Transverse Differential Protection of the present invention generates jointly.
Specific implementation mode
Invention is further described in detail in the following with reference to the drawings and specific embodiments.
By Fig. 1-3 it is found that the hybrid excitation permanent magnet motor with double Exciting Windings for Transverse Differential Protection of the present invention, including casing 1, casing 1
It is interior to be configured with stator core 2, it along the circumferential direction slots 10 on stator core 2, stator armature winding 3 is disposed in slot 10.Casing 1
It is fixed with stator core 2.Shaft 7 is configured in casing 1, shaft 7 is connect by bearing 13 with casing 1.It is configured in shaft 7
Rotor core 8 has permanent magnetism magnetic pole 4 and ferromagnetic magnetic pole 6 on rotor core 8, and rotor windings 9 are by rotor demagnetization Exciting Windings for Transverse Differential Protection 11 and turn
Son operation Exciting Windings for Transverse Differential Protection 12.It is disposed with permanent magnet 5 and rotor demagnetization Exciting Windings for Transverse Differential Protection 11 on permanent magnetism magnetic pole 4, is arranged on ferromagnetic magnetic pole 6
There are rotor operation Exciting Windings for Transverse Differential Protection 12, rotor demagnetization Exciting Windings for Transverse Differential Protection 11 and rotor operation Exciting Windings for Transverse Differential Protection 12 to pass through two groups of slip rings and brush
It is connected respectively with two exciter control systems.Permanent magnet 5, rotor core 8 and rotor windings 9 can be together with shaft 7 in stator iron
Rotation in core 2.
The present invention operation principle be：When generator no-load running, shaft 7 is rotated with synchronous speed, exciter control system 1
Work, exciter control system 2 do not work, and exciting current, rotor demagnetization Exciting Windings for Transverse Differential Protection 11 are inputted in rotor operation Exciting Windings for Transverse Differential Protection 12
In do not input exciting current, the excitation magnetomotive force that non-load air gap field is generated by permanent magnet 5 and rotor operation Exciting Windings for Transverse Differential Protection 12 is total to
With establishing, by adjusting the size of exciting current in rotor operation Exciting Windings for Transverse Differential Protection 12, the air-gap field of ferromagnetic magnetic pole 6 can be adjusted
Size, as shown in Figure 4 and Figure 5, air-gap field incude the electromotive force of synchronizing frequency in stator armature winding 3, which exists
One timing of rotating speed is kept constant.When generator loading is run, permanent magnet 5, rotor operation Exciting Windings for Transverse Differential Protection 12 and stator armature around
The magnetomotive force that group 3 generates establishes air-gap field, the excitation that exciter control system 1 passes through control rotor operation Exciting Windings for Transverse Differential Protection 12 jointly
Size of current can meet requirement of the generator with different loads, have normal excitation, automatic field forcing, and subtracts to encourage etc. by force and encourage
Magnetic function.When internal fault of electric generator, exciter control system 1 does not work, and exciter control system 2 works, rotor operation excitation
Exciting current is not inputted in winding 12, and exciting current is inputted in rotor demagnetization Exciting Windings for Transverse Differential Protection 11, the air-gap field side for making it generate
As long as to the air-gap magnetic field direction generated with permanent magnet 5 on the contrary, as shown in fig. 6, inputting foot in rotor demagnetization Exciting Windings for Transverse Differential Protection 11
Enough big exciting currents, the air-gap field generated can be completely counterbalanced by the air-gap field of permanent magnet generation, go out to reach
The purpose of magnetic.
When the present invention is used as generator, stator armature winding 3 is connected with load, when being used as motor, stator armature winding 3
It is connected with driving power.
Claims (6)
1. the hybrid excitation permanent magnet motor with double Exciting Windings for Transverse Differential Protection, including a casing (1), it is characterised in that：Casing（1）Inside it is equipped with
By stator core（2）, stator armature winding（3）The stator of composition and by permanent magnetism magnetic pole（4）, permanent magnet（5）, ferromagnetic magnetic pole（6）、
Shaft（7）, rotor core（8）, rotor windings（9）The rotor of composition；Stator armature winding（3）It is distributed in stator core（2）On
The slot along the circumferential direction opened up（10）In, rotor core（8）On be disposed with permanent magnetism magnetic pole（4）With ferromagnetic magnetic pole（6）, each permanent magnetism
Magnetic pole（4）Arrange permanent magnet（5）, permanent magnet（5）About permanent magnetism magnetic pole（4）Center line is symmetrical, rotor windings（9）By rotor
Demagnetization Exciting Windings for Transverse Differential Protection（11）With rotor operation Exciting Windings for Transverse Differential Protection（12）Composition, rotor demagnetization Exciting Windings for Transverse Differential Protection（11）It is sleeved on permanent magnetism magnetic pole
（4）Pole body, rotor operation Exciting Windings for Transverse Differential Protection（12）It is sleeved on ferromagnetic magnetic pole（6）Pole body, rotor demagnetization Exciting Windings for Transverse Differential Protection（11）It is transported with rotor
Row Exciting Windings for Transverse Differential Protection（12）It is connected respectively with two exciter control systems.
2. motor according to claim 1, it is characterised in that the stator armature winding（3）For multiphase symmetric winding or
Single-phase winding.
3. motor according to claim 1, it is characterised in that the permanent magnetism magnetic pole（4）With ferromagnetic magnetic pole（6）Quantity
It is determined according to voltage regulation limits.
4. motor according to claim 1, it is characterised in that the permanent magnet（5）Using built-in arrangement or surface-mount type
Arrangement.
5. motor according to claim 1, it is characterised in that the motor is inner rotor motor or external rotor electric machine.
6. motor according to claim 1, it is characterised in that the motor is rotary magnetic pole type motor or electric rotating
Pivot formula motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610316335.3A CN106026591B (en) | 2016-05-16 | 2016-05-16 | Hybrid excitation permanent magnet motor with double Exciting Windings for Transverse Differential Protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610316335.3A CN106026591B (en) | 2016-05-16 | 2016-05-16 | Hybrid excitation permanent magnet motor with double Exciting Windings for Transverse Differential Protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106026591A CN106026591A (en) | 2016-10-12 |
| CN106026591B true CN106026591B (en) | 2018-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610316335.3A Active CN106026591B (en) | 2016-05-16 | 2016-05-16 | Hybrid excitation permanent magnet motor with double Exciting Windings for Transverse Differential Protection |
Country Status (1)
| Country | Link |
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| CN (1) | CN106026591B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507176B (en) * | 2021-06-08 | 2022-11-25 | 南京航空航天大学 | Rotor multi-groove type induction excitation type hybrid excitation motor |
| CN113566911B (en) * | 2021-06-23 | 2024-05-28 | 宁波水表(集团)股份有限公司 | Excitation control method, equipment and storage medium of electromagnetic water meter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185448A (en) * | 2011-05-09 | 2011-09-14 | 清华大学 | Hybrid excitation permanent magnet motor for wireless transmission and tooth harmonic excitation |
| CN202384969U (en) * | 2011-10-31 | 2012-08-15 | 上海电机学院 | Hybrid excitation synchronous motor having high power density |
| CN103051134A (en) * | 2012-12-26 | 2013-04-17 | 南昌大学 | Serial-magnetic-circuit hybrid-excitation permanent magnet motor |
| CN204538925U (en) * | 2015-02-02 | 2015-08-05 | 南昌大学 | The hybrid excitation permanent magnet motor of biharmonic excitation |
| CN205753907U (en) * | 2016-05-16 | 2016-11-30 | 南昌大学 | There is the hybrid excitation permanent magnet motor of double Exciting Windings for Transverse Differential Protection |
-
2016
- 2016-05-16 CN CN201610316335.3A patent/CN106026591B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185448A (en) * | 2011-05-09 | 2011-09-14 | 清华大学 | Hybrid excitation permanent magnet motor for wireless transmission and tooth harmonic excitation |
| CN202384969U (en) * | 2011-10-31 | 2012-08-15 | 上海电机学院 | Hybrid excitation synchronous motor having high power density |
| CN103051134A (en) * | 2012-12-26 | 2013-04-17 | 南昌大学 | Serial-magnetic-circuit hybrid-excitation permanent magnet motor |
| CN204538925U (en) * | 2015-02-02 | 2015-08-05 | 南昌大学 | The hybrid excitation permanent magnet motor of biharmonic excitation |
| CN205753907U (en) * | 2016-05-16 | 2016-11-30 | 南昌大学 | There is the hybrid excitation permanent magnet motor of double Exciting Windings for Transverse Differential Protection |
Non-Patent Citations (2)
| Title |
|---|
| "混合励磁同步电机及其控制技术综述和新进展";赵纪龙等;《中国电机工程学报》;20141125;第34卷(第33期);第5876-5887页 * |
| "混合磁极式的混合励磁永磁同步发电机";夏永洪等;《微电机》;20120930;第45卷(第9期);第18-21页 * |
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| CN106026591A (en) | 2016-10-12 |
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